Basing on authoritative Abrasive Tool Institute of Huaqiao University, owning many yearsâ research and development of diamond tools, quarrying machines for stone working industry, Huada Superabrasive Tool Technology Co.,Ltd is an acknowledged main supplier of diamond tools and quarry machines both in China and abroad with its network of Sole Agents, Dealers and End users. Our engineers are composing of Doctors, Professors and Specialists, who have been long dedicated to developing top quality diamond tools and machines, applying HuaDa to be the International Brand Image in this field.